Answer: Federalism is a system of government in which power is shared between a central authority and constituent political units, such as states or provinces. This means that there is a division of power and responsibilities between the national government and the subnational governments. Each level of government has its own sphere of authority, and they must work together to govern the country or region as a whole. In this way, federalism allows for both a strong central government and some degree of local autonomy.